def _readProtocolRefListsAt(machO, vmaddrs):
"""Return the an iterable of addresses to protocols from the iterable
*vmaddrs* pointing to ``old_protocol_list``\\s."""
# struct old_protocol_list {
# struct old_protocol_list *next;
# long count;
# struct old_protocol *list[1];
# };
f = machO.file
stack = list(vmaddrs)
while True:
newStack = []
for vmaddr in stack:
machO.seek(machO.fromVM(vmaddr))
(next, count) = readStruct(f, machO.makeStruct('2^'))
if next:
newStack.append(next)
for addr in peekPrimitives(f, '^', count, machO.endian, machO.is64bit):
yield addr
if not newStack:
break
stack = newStack
def indirectSymbols(self, start, count, machO):
'''Get symbol indices from the indirect symbol table, given the *start*
index and the *count* of indices to retrieve.'''
offset = self.indirectsymoff + start * 4 + machO.origin
return peekPrimitives(machO.file,
'L',
count,
machO.endian,
machO.is64bit,
position=offset)
def _readProtocolRefListAt(machO, vmaddr):
"""Return the an iterable of addresses to protocols from *vmaddr*."""
# typedef struct protocol_list_t {
# // count is 64-bit by accident.
# uintptr_t count;
# protocol_ref_t list[0]; // variable-size
# } protocol_list_t;
if vmaddr:
machO.seek(machO.fromVM(vmaddr))
ptrStru = machO.makeStruct('^')
count = readStruct(machO.file, ptrStru)[0]
return peekPrimitives(machO.file, '^', count, machO.endian, machO.is64bit)
else:
return []
def _readProtocolRefListAt(machO, vmaddr):
"""Return the an iterable of addresses to protocols from *vmaddr*."""
# typedef struct protocol_list_t {
# // count is 64-bit by accident.
# uintptr_t count;
# protocol_ref_t list[0]; // variable-size
# } protocol_list_t;
if vmaddr:
machO.seek(machO.fromVM(vmaddr))
ptrStru = machO.makeStruct('^')
count = readStruct(machO.file, ptrStru)[0]
return peekPrimitives(machO.file, '^', count, machO.endian, machO.is64bit)
else:
return []
def asPrimitives(self, fmt, machO, includeAddresses=False): """Read the whole section as primitives, and return an iterable of these. If *includeAddresses* is set to ``True``, return an iterable of (address, primitive) tuples. """ endian = machO.endian is64bit = machO.is64bit ssize = calcsize(decodeStructFormat(fmt, endian, is64bit)) count = self.size // ssize prims = peekPrimitives(machO.file, fmt, count, endian, is64bit, position=self.offset+machO.origin) if includeAddresses: addrs = range(self.addr, self.addr + self.size, ssize) return zip(addrs, prims) else: return prims
def asPrimitives(self, fmt, machO, includeAddresses=False):
"""Read the whole section as primitives, and return an iterable of these.
If *includeAddresses* is set to ``True``, return an iterable of
(address, primitive) tuples.
"""
endian = machO.endian
is64bit = machO.is64bit
ssize = calcsize(decodeStructFormat(fmt, endian, is64bit))
count = self.size // ssize
prims = peekPrimitives(machO.file,
fmt,
count,
endian,
is64bit,
position=self.offset + machO.origin)
if includeAddresses:
addrs = list(range(self.addr, self.addr + self.size, ssize))
return list(zip(addrs, prims))
else:
return prims
def indirectSymbols(self, start, count, machO): '''Get symbol indices from the indirect symbol table, given the *start* index and the *count* of indices to retrieve.''' offset = self.indirectsymoff + start * 4 + machO.origin return peekPrimitives(machO.file, 'L', count, machO.endian, machO.is64bit, position=offset)
